INSECTS INJURIOUS TO COTTON 



257 



Inasmuch as the moths prefer to lay their eggs on corn-silk, 

 cotton may be very effectively protected by the use of strips of 

 late corn and cow-peas, planted through the cotton so as to act as a 

 trap crop. Leave vacant strips four or five rods wide across the 





f 



FlG. 186. Pupa of the bollworm in its burrow in the soil, showing burrow 

 made by the larva and filled in, and the exit burrow for the moth also 

 made by the larva natural size. (After Quaintance and Brues, U. S. 

 Dept. Agr.) 



fields when planting cotton. About June 1st plant these with 

 alternate, rows of Mexican June corn and cow-peas. This will bring 

 the corn into silk about the first of August and will attract the 



